Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Wellsboro Johnston Airport (KN38)

Lat: 41.73°NLon: 77.4°WElev: 1892ft.

Fair

75°F

24°C

Humidity 74%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 29 Jun 9:55 am EDT
Extended Forecast for

Knoxville PA

  • Today

    Today: Mostly sunny, with a high near 86. Light east wind.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Light southwest wind.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 4pm.  Partly sunny, with a high near 88. Southwest wind 5 to 9 mph.  Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 71. Southwest wind 3 to 6 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94. West wind 5 to 9 mph.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 86. Light east wind.
Tonight
Partly cloudy, with a low around 65. Light southwest wind.
Tuesday
A chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny and hot, with a high near 94. West wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny and hot, with a high near 93.
Friday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Independence Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville PA
 41.97°N 77.42°W (Elev. 1378 ft)
9:55 am EDT Jun 29, 2026
10am EDT Jun 29, 2026-6pm EDT Jul 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database